Influence of the interoception on the mechanism of emotion from music

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K13752
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 10040:Experimental psychology-related
• Research Institution: Hiroshima University
• Principal Investigator: Maekawa Toru 広島大学, 脳・こころ・感性科学研究センター, 研究員 (40862173)
• Project Period (FY): 2021-04-01 – 2023-03-31
• Keywords: 内受容感覚 / 音楽 / 心拍

Outline of Final Research Achievements

This research project aims to explore the connection betIen emotions evoked by music and interoceptive sensitivity. Interoceptive sensitivity is believed to play a role in emotion regulation and recognition, suggesting that individuals with higher interoceptive sensitivity may exhibit greater sensitivity to changes in emotional responses to different musical pieces. To accomplish the objectives of this study, I investigated a method to assess individual variations in interoceptive sensitivity through heartbeat perception. I initially developed an enhanced version of the traditional heartbeat discrimination task and assessed its validity. The findings revealed a significant association betIen measured interoceptive sensitivity and emotional responses to music, highlighting the impact of individual differences in interoceptive sensitivity on the perception of emotional responses to music.

Free Research Field

認知心理学

Academic Significance and Societal Importance of the Research Achievements

内受容感覚と感動の関連を調べることで，感情の生成モデルを実証的に検証できる。感情のメカニズムは古くから調べられてきたが，神経生理学的な背景を持ったモデルベースの検討を行うことで，演繹的に感情に伴う現象を予測することができる可能性がある。また，内受容感覚は多くの感情障害とも関連することが示されている。特にうつ病や躁うつ病は感情や意欲の問題のほかに，身体症状がみられることが知られている。本研究はこれらの疾患の発生原因にかかわる内容であり，疾患の原因の理解や治療法の開発への寄与が期待される。